The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2018
Filed:
May. 20, 2015
Philips Lighting Holding B.v., Eindhoven, NL;
Hendrik Johannes Boudewijn Jagt, Eindhoven, NL;
Floris Maria Hermansz Crompvoets, Eindhoven, NL;
Wouter Dekkers, Eindhoven, NL;
Fritz Helmut Zahn, Eindhoven, NL;
Olexandr Valentynovych Vdovin, Eindhoven, NL;
Jacobus Johannes Franciscus Gerardus Heuts, Eindhoven, NL;
Maria Johanna Helena Sander-Jochem, Eindhoven, NL;
Christian Kleijnen, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A compact LED lighting unit, () for camera flash applications, comprising a reflective housing having () having a reflective base () and an open top (); an LED () mounted within the reflective housing () and a beam shaping foil stack () provided over the open top of the housing (); wherein, the foil stack () comprises first and second microstructured sheets (), each having an array of elongate locally parallel ridges () facing away from the LED, wherein the ridges of one sheet locally cross the ridges of the other sheet by an angle in the range 30 to 150 degrees.